jonson



(No Model.) 2 Sheets-Sheet l J. JONSON.

GONSTRU CTION OF TUNNELS FOR CABLE RAILWAYS. No. 368,834. Patented Aug,23, 188 7.

N PETEns. Phnm-Lilhn m her, Washin ton, D. c.

2 Sheets-+Sheet 2.

(No Model.)

J. JONSON.

CONSTRUOTION OPTUNNBLS FOR CABLE RAILWAYS. No. 368,834.

Patented Aug. 23, 1887.

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wei @g N. PETERS, Pnnmuthn m mr, Washinflun D. C.

llNiTED STATES PATENT OEEicE.

JULIUS JONSON, OF NEW YORK, N. Y.

CONSTRUCTION OF TUNNELS FOR CABLE RAILWAYS.

SPECIFICATION forming part of Letters Patent No. 368,834, dated August23, 1887.

Application filed February 8 1887. Serial No. 126.882. (No model.)

To CbZZ whom it may concern.-

Be it known that I, JnLius JoNsoN, of the city and county of New York,in. the State of New York, have invented a new and useful Improvement inthe Construction of Tunnels for Cable Rail-ways, of which the followingis a specification.

My invention relates to that class of railway structures in which thereis a cable-tunnel of comparatively small size between the trackrails,and communicating with the surface by a narrow slot, which receives aconnection between the car traveling on the surface, and mechanism forgrasping the cable which moves in the tunnel. In such railways thetrackrails are commonly supported by transverse frames or yokes at shortintervals apart in their length, and at intervals in the line of thetunnel are pulley-vaults or sheave-pits, in which are arranged thepulleys or sheaves carrying a cable or cables.

The object of my invention is to provide a construction for suchcable-tunnel and pulleyvaults that will permit of their being made ventirely or almost entirely of cast-metal plates which are substantiallyfiat or plane surfaces; and the invention consists in novel combinations of parts which are hereinafter described, and pointed out in theclaims.

In the accompanying drawings, Figure 1 is a transverse section of acable-railway structure embodying my invention. Fig. 2 is a horizontalsection through the transverse yokes or frames and the side plates ofthe tunnel. Fig. 3 is a transverse section similar to Fig. 1, but takenthrough one of the pulley-vaults or sheave-pits. upon about the planeindicated by the dotted line 00 m, Fig. 3,-through one of thepulleyvaults or sheave'pits; and Fig. 5 is a plan View showing a coveror man-hole plate which closes a pulley-vault or sheave-pit and themeans which are employed for supporting the same.

Similar letters of reference designate corresponding parts in all thefigures.

A. designates the track-rails, and B the slotbars which are supportedbetween them at suchadistance apart as to form the slot 1). The railsand slot-bars are supported at suitable intervals in their length bytransverse frames or yokes, which are or may be of ordinary Fig. 4. is alongitudinal section form, and which are shown as consisting of up- Iright stands or castings G, securely riveted or bolted at properdistances apart in the length of a transverse beam or girder, O, whichmay be in the form of an I-beam, as shown in Fig. 4.

The tunnelitself I have represented as composed of side plates, D, andbottom plates, D. All these plates are substantially flat, and they areprovided with strengthening-ribs d on theirsurfaces, as shown in Figs. 1and 2. The several plates D D are constructed so as to form rabbetedjoints with lateral flanges c on the transverse yokes or frames, and theside and bottom plates are rabbeted or constructed to form rabbetedjoints one with another, as shown in Fig. l, the side plates, D, beingrabbeted at (P, so as to form suitable joints with the bottom plates.The side plates, D D, may extend-upward to the slotbars B, as shown atb.

The several plates D D of which the tunnel is composed, being madesubstantially flat and of cast metal, with strengtheningribs upon theirsurfaces, they may be arranged and secured together to form the tunnel Ewith the least possible labor, and without the necessity of leaving thestreet or excavation open for a long time in order to enable cement ormasonry to become properly dried before being covered with earth. Theplates being pro vided of proper size, they can be arranged in place andsecured together to form the tunnel E almost as-rapidly as theexcavation can be made, and in building the structure the least amountof interference with surface travel will be created. 7

In Figs. 3, 4, and 5 I have represented a pulley-vault or sheave pitsuch as will be constructed at suitable intervals in the line of thetunnel, and which is designated by the letter E. The ends of thispulleyvault or sheavepit E down to the level of the beams C may beformed solely by the transverse yokes or frames 0 O, as best shown inFig. 4, and the longitudinal walls, or those walls of the vault whichare lengthwise of or parallel with the track-rails A, may be formed byupper plates, D and lower plates, D, as is shown in Fig. 3. The plates Dare here represented as secured at b, respectively, to one ofthe'slotbars B, and also to the transverse frames or yokes G 0, formedon opposite walls of the pulley-vault. The plates D D are provided ontheir surface with strengthening-ribs d, and one or both of them arebolted to flanges 0, projecting from the transverse yokes or frames 0 O,asis shown at thelefthand of Fig. 3. The lower plates, D, which form thelongitudinal walls of the pulleyvault, are united. by rab beted andbolted or riveted joints d with the upper plates, D", as shown in Fig.3, and the lower end plates, D", forming the lower portion of the endwalls of the vault, may extend only to the transverse beams or girdersC, as is shown in Fig. 4, and may be bolted or riveted at d to theplates D which form the longitudinal lower walls of the vault.

The bottom of the vault is formed by a plate, D which is constructed toform a rabbeted and bolted or riveted joint 61 with the longitudinalside plates, D and the end plates, D", which form the lower portions ofthe walls of the pulley-vault. Each pulley-vault has aman-hole at thestreet-surface, which is closed by a cover, F. This cover may besupported by transverse bars or bearers F, one of which is shown in Fig.5 and both of which are shown in Fig. 4, and these transverse bars orbearers may extend from one of the slot-bars 13 to the track-rail A,which is upon the same side of the slot, and form an adequate supportfor the man-hole cover F. The space between each of the transverse barsor bearers F and the transverse yoke or frame 0 G which is nearestadjacent thereto may be closed by a plate, F which rests upon the top ofthe trans verse yoke or frame and also upon the ledge or shoulderf,provided on the adjacent bar or bearer.

It will be readily seen that I provide for constructing thepulley-vaults in the same simple manner as the tunnel proper, and theplates for both these purposes having been previously made in propersizes and shapes,

maybe secured together and the structure' completed almost as rapidly asthe excavation can be made.

What I claim as my invention, and desire to secure by Letters Patent,is-

1. In a cable-railway structure, the combination, with the transverseyokes or frames for supporting the rails and slot-bars, of a tunnelcomposed of substantially flat base and side plates ribbed upon theirsurfaces and secured together and to the said yokes or frames,substantially as herein described.

2. The combination, with the transverse yokes or frames for supportingthe rails and slot-bars, of a tunnel composed of substantially flatplates ribbed upon their surfaces and forming rabbeted joints with theyokes or frames and with each other, substantially as herein described.

3. The combination, with the transverse yokes or frames for supportingthe rails and slot-bars, of a tunnel and pulley-vaults at intervalsinthe length thereof, both formed of substantially flat plates ribbed ontheir surfaces and forming rabbeted joints with the yokes or frames andwith each other, substantially as herein described.

4. The combination, with the transverse yokes or frames supporting theslot-bars and rails, of the transverse bars or bearers F, extendingbetween the slot-bars and one of the rails, the man-hole cover F,supported on and between said bars or bearers, and the plates F forsustaining the road-bed, supported on said bars or bearers and theadjacent yokes or frames, substantially as herein described.

JULIUS J ONSON.

WVitnesses:

/ FREDK. HAYNES,

EMIL HERTER.

